There is a close connection between socio-political development, the struggle between social classes and the history of ideologies. In general, intellectual movements closely reflect the trends of economic developments. In communal society, where there are virtually no class divisions, man's productive activities on outlook and culture is less discernible. Account must be taken of the psychology of conflicting classes.

Of course his dust would be absorbed in other living things and to that degree at least he would exist again, though it was plain enough that the specific combination which was he would never exist again.

One sticks to an opinion because he prides himself on having come to it on his own, and another because he has taken great pains to learn it and is proud to have grasped it: and so both do so out of vanity.

The paradoxes of today are the prejudices of tomorrow, since the most benighted and the most deplorable prejudices have had their moment of novelty when fashion lent them its fragile grace.

Money is a bubble that never pops. It's a consensus hallucination.

What use is it to us to hear it said of a man that he has thrown off the yoke that he does not believe there is a God to watch over his actions, that he reckons himself the sole master of his behavior, and that he does not intend to give an account of it to anyone but himself?